diff options
Diffstat (limited to 'IntelFrameworkPkg/Include')
| -rw-r--r-- | IntelFrameworkPkg/Include/Framework/SmmCis.h | 53 | ||||
| -rw-r--r-- | IntelFrameworkPkg/Include/Protocol/SmmCpuIo.h | 88 |
2 files changed, 88 insertions, 53 deletions
diff --git a/IntelFrameworkPkg/Include/Framework/SmmCis.h b/IntelFrameworkPkg/Include/Framework/SmmCis.h index 7fa9884a72..6021802969 100644 --- a/IntelFrameworkPkg/Include/Framework/SmmCis.h +++ b/IntelFrameworkPkg/Include/Framework/SmmCis.h @@ -22,68 +22,15 @@ #include <Pi/PiSmmCis.h>
#include <Protocol/SmmCpuIo.h>
-#define EFI_SMM_CPU_IO_GUID \
- { \
- 0x5f439a0b, 0x45d8, 0x4682, {0xa4, 0xf4, 0xf0, 0x57, 0x6b, 0x51, 0x34, 0x41 } \
- }
-
typedef struct _EFI_SMM_SYSTEM_TABLE EFI_SMM_SYSTEM_TABLE;
typedef struct _EFI_SMM_CPU_IO_INTERFACE EFI_SMM_CPU_IO_INTERFACE;
-
//
// SMM Base specification constant and types
//
#define EFI_SMM_SYSTEM_TABLE_REVISION (0 << 16) | (0x09)
/**
- Provides the basic memory and I/O interfaces that are used to
- abstract accesses to devices.
-
- @param This The EFI_SMM_CPU_IO_INTERFACE instance.
- @param Width Signifies the width of the I/O operations.
- @param Address The base address of the I/O operations.
- @param Count The number of I/O operations to perform.
- @param Buffer For read operations, the destination buffer to store the results (out parameter).
- For write operations, the source buffer from which to write data (in parameter).
-
- @retval EFI_SUCCESS The data was read from or written to the device.
- @retval EFI_UNSUPPORTED The Address is not valid for this system.
- @retval EFI_INVALID_PARAMETER Width or Count, or both, were invalid.
- @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.
-
-**/
-typedef
-EFI_STATUS
-(EFIAPI *EFI_SMM_CPU_IO)(
- IN EFI_SMM_CPU_IO_INTERFACE *This,
- IN EFI_SMM_IO_WIDTH Width,
- IN UINT64 Address,
- IN UINTN Count,
- IN OUT VOID *Buffer
- );
-
-typedef struct {
- EFI_SMM_CPU_IO Read; ///< This service provides the various modalities of memory and I/O read.
- EFI_SMM_CPU_IO Write; ///< This service provides the various modalities of memory and I/O write.
-} EFI_SMM_IO_ACCESS;
-
-///
-/// The EFI_SMM_CPU_IO_INTERFACE service provides the basic memory, I/O, and PCI
-/// interfaces that are used to abstract accesses to devices.
-///
-struct _EFI_SMM_CPU_IO_INTERFACE {
- ///
- /// Allows reads and writes to memory-mapped I/O space.
- ///
- EFI_SMM_IO_ACCESS Mem;
- ///
- /// Allows reads and writes to I/O space.
- ///
- EFI_SMM_IO_ACCESS Io;
-};
-
-/**
Allocates pool memory from SMRAM for IA-32 or runtime memory for
the Itanium processor family.
diff --git a/IntelFrameworkPkg/Include/Protocol/SmmCpuIo.h b/IntelFrameworkPkg/Include/Protocol/SmmCpuIo.h new file mode 100644 index 0000000000..158f216efb --- /dev/null +++ b/IntelFrameworkPkg/Include/Protocol/SmmCpuIo.h @@ -0,0 +1,88 @@ +/** @file
+ SMM CPU I/O protocol as defined in the Intel Framework specification.
+
+ This protocol provides CPU I/O and memory access within SMM.
+
+ Copyright (c) 2009 - 2010, Intel Corporation
+ All rights reserved. This program and the accompanying materials
+ are licensed and made available under the terms and conditions of the BSD License
+ which accompanies this distribution. The full text of the license may be found at
+ http://opensource.org/licenses/bsd-license.php
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#ifndef _SMM_CPU_IO_H_
+#define _SMM_CPU_IO_H_
+
+#include <Protocol/SmmCpuIo2.h>
+
+#define EFI_SMM_CPU_IO_GUID \
+ { \
+ 0x5f439a0b, 0x45d8, 0x4682, {0xa4, 0xf4, 0xf0, 0x57, 0x6b, 0x51, 0x34, 0x41} \
+ }
+
+typedef struct _EFI_SMM_CPU_IO_INTERFACE EFI_SMM_CPU_IO_INTERFACE;
+
+/**
+ Provides the basic memory and I/O interfaces used to abstract accesses to devices.
+
+ The I/O operations are carried out exactly as requested. The caller is
+ responsible for any alignment and I/O width issues that the bus, device,
+ platform, or type of I/O might require.
+
+ @param[in] This The EFI_SMM_CPU_IO_INTERFACE instance.
+ @param[in] Width Signifies the width of the I/O operations.
+ @param[in] Address The base address of the I/O operations. The caller is
+ responsible for aligning the Address if required.
+ @param[in] Count The number of I/O operations to perform.
+ @param[in,out] Buffer For read operations, the destination buffer to store
+ the results. For write operations, the source buffer
+ from which to write data.
+
+ @retval EFI_SUCCESS The data was read from or written to the device.
+ @retval EFI_UNSUPPORTED The Address is not valid for this system.
+ @retval EFI_INVALID_PARAMETER Width or Count, or both, were invalid.
+ @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack
+ of resources.
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_SMM_CPU_IO)(
+ IN EFI_SMM_CPU_IO_INTERFACE *This,
+ IN EFI_SMM_IO_WIDTH Width,
+ IN UINT64 Address,
+ IN UINTN Count,
+ IN OUT VOID *Buffer
+ );
+
+typedef struct {
+ ///
+ /// This service provides the various modalities of memory and I/O read.
+ ///
+ EFI_SMM_CPU_IO Read;
+ ///
+ /// This service provides the various modalities of memory and I/O write.
+ ///
+ EFI_SMM_CPU_IO Write;
+} EFI_SMM_IO_ACCESS;
+
+///
+/// SMM CPU I/O Protocol provides CPU I/O and memory access within SMM.
+///
+struct _EFI_SMM_CPU_IO_INTERFACE {
+ ///
+ /// Allows reads and writes to memory-mapped I/O space.
+ ///
+ EFI_SMM_IO_ACCESS Mem;
+ ///
+ /// Allows reads and writes to I/O space.
+ ///
+ EFI_SMM_IO_ACCESS Io;
+};
+
+extern EFI_GUID gEfiSmmCpuIoGuid;
+
+#endif
|